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News on the March-evolution of galaxies

Disk galaxies like our own Milky Way put the finishing touches on their stunning shapes relatively recently, a new study suggests.
The find will likely surprise many scientists, who had thought such galaxies had been static for more than half of the universe’s 13.7-billion-year existence.
“Astronomers thought disk galaxies in the nearby universe had settled into their present form by about eight billion years ago, with little additional development since,” lead author Susan Kassin, of NASA’s Goddard Space Flight Center in Greenbelt, Md., said in a statement. “The trend we’ve observed instead shows the opposite — that galaxies were steadily changing over this time period.”Kassin and her colleagues used NASA’s Hubble Space Telescope and the Keck Observatory in Hawaii to study 544 blue galaxies, whose color indicates that stars are forming within them.
They found that the most far-flung, ancient galaxies tend to be the most disordered, with organization steadily increasing as galaxies are observed closer and closer to the present day. Over time, the galaxies’ rotation speeds increase, and they settle into proper, well-behaved disks.
The trend holds for galaxies of all masses, but the biggest systems are always the most highly organized, researchers said.(ack:space.com of Oct 23, 2012/Galaxy Evolution surprises Scientists)

it is a law of Nature that unless certain force acts on an object say an apple, it will tend to a certain disorder over a period of time. An apple rots away and the luscious fruit has become unpalatable. Law of entropy is a matter for our universe and physical world. How does a galaxy organizes itself unless there is an external agency works with every component that makes it up. If I as a Christian should claim it is God by his very nature of Love who shall disprove me?

One Response

What is evolution but fine-tuning what is existing economically as well as for accommodating more possibilities? In the Persistence of life we had discussed the case of gold fishes. Their ability to survive is fine-tuning small gains over a prolonged period of time so second set of proteins are part of its ability to survive. During supernova debris of ISM is not lost but serve for new stars that may come into being after millennia.
When we speak of chaos one aspect is inherent in it. Probability is part of it. Thus an avalanche is set in motion by some accident. There is a butterfly effect so some villages on one side of the mount is completely inundated by snow and another village is spared from destruction. Probability is part of the event. Each one shall speak why one village is destroyed while the other is spared. Main point to remember is that total annihilation does not occur. If Thera causes a tsunami (around Santorini) and aftershocks destroy Minoan civilization what we see is the flowering of Mycenean civilization in the Greek mainland. There is an order worked out from chaos. Remember the myth of Minotaur and labyrinth and it is what has survived. So the past is altered in the new. One might say there is a Mind or Order that keeps all events and allows man to benefit from experience according to circumstances of the time. Mind of man can interface with it. One might call it God or simply an Order.
Evolution explains time scale far greater than what we makes use for our needful things.